Improvement in preparing crude camphor for preserving furs



UNITED. STATES PATENT QFFIGE.

WILLIAM F. SIMES, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN PREPARING CRUDE CAMPHOR FOR PRESERVING FURS. 8w.

Specification forming part of Letters Patent No. 127,807, dated June 11, 1872.

Specification describing a Process for Preparing Orude Gamphor for Preserving Furs, Woolens, and other materials from destruction by moths and other insects, invented by WILLIAM F. SIMEs, of Philadelphia, Pennsyl- Vania.

My process consists in converting crude or unrefined camphor into solid blocks, cakes, or tablets, by means of pressure.

The crude camphor of commerce occurs in small pieces, and has been hitherto prepared for use by distillation. I place the crude camphor of commerce in bags or molds and subiect them to heavy pressure. I prefer to use for the purpose linen bags and a hydraulic press. The camphor may be cold or Warm;

but I prefer it to be cold when under pressure,

as there is a saving of essential oil. The cam- -phor is thus compressed into blocks, cakes, or

tablets in sizes of a pound or fractional part of a pound each, or of any desired size.

The camphor prepared by my process is used for protecting furs, woolens, and other sub stances from destruction by moths and other insects, and for such uses is superior to distilled or refined camphor, because my compressed camphor being very compact it retains longer its essential oil or volatile principle.

In the use of my process there is also a saving of the essential oil which is necessarily lost or changed by distillation.

I claim- The process of compressing crude camphor into tablets, cakes, or blocks, substantially as set forth.

2. As a new manufacture, tablets, cakes, or blocks of crude camphor formed by pressure with or Without heat, for the purposes specified.

WILLIAM F. SIMES.

Witnesses:

ED. J. FASY, J. E. SHAW. 

